Looking for simple skin node setup
With makehuman textures, you can simply use the principled node and feed the image texture to color and subsurface scattering inputs. 

To provide bump detail, duplicate the texture with Ctrl+Shift+D (this keeps it connected to the mapping node), and add a color ramp to create a greyscale image to feed into a bump node. 

An example of a simple setup could be something like the following:


Click to enlarge

This produced the following result from a makehuman export: